BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 86 47.3%
2 United States 43 23.6%
3 Germany 11 6%
4 Hong Kong 8 4.4%
5 Canada 7 3.8%
6 Senegal 6 3.3%
7 Netherlands 5 2.7%
8 Portugal 5 2.7%
9 3 1.6%
10 Taiwan 3 1.6%
11 Thailand 1 0.5%
12 United Kingdom 1 0.5%
13 Singapore 1 0.5%
14 Russia 1 0.5%
15 Malaysia 1 0.5%